1
2/*
3 * Copyright 2006 The Android Open Source Project
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9
10#include "SkSVGSVG.h"
11#include "SkParse.h"
12#include "SkRect.h"
13#include "SkSVGParser.h"
14
15const SkSVGAttribute SkSVGSVG::gAttributes[] = {
16    SVG_LITERAL_ATTRIBUTE(enable-background, f_enable_background),
17    SVG_ATTRIBUTE(height),
18    SVG_ATTRIBUTE(overflow),
19    SVG_ATTRIBUTE(width),
20    SVG_ATTRIBUTE(version),
21    SVG_ATTRIBUTE(viewBox),
22    SVG_ATTRIBUTE(x),
23    SVG_LITERAL_ATTRIBUTE(xml:space, f_xml_space),
24    SVG_ATTRIBUTE(xmlns),
25    SVG_LITERAL_ATTRIBUTE(xmlns:xlink, f_xml_xlink),
26    SVG_ATTRIBUTE(y),
27};
28
29DEFINE_SVG_INFO(SVG)
30
31
32bool SkSVGSVG::isFlushable() {
33    return false;
34}
35
36void SkSVGSVG::translate(SkSVGParser& parser, bool defState) {
37    SkScalar height, width;
38    SkScalar viewBox[4];
39    const char* hSuffix = SkParse::FindScalar(f_height.c_str(), &height);
40    if (strcmp(hSuffix, "pt") == 0)
41        height = SkScalarMulDiv(height, SK_Scalar1 * 72, SK_Scalar1 * 96);
42    const char* wSuffix = SkParse::FindScalar(f_width.c_str(), &width);
43    if (strcmp(wSuffix, "pt") == 0)
44        width = SkScalarMulDiv(width, SK_Scalar1 * 72, SK_Scalar1 * 96);
45    SkParse::FindScalars(f_viewBox.c_str(), viewBox, 4);
46    SkRect box;
47    box.fLeft = SkScalarDiv(viewBox[0], width);
48    box.fTop = SkScalarDiv(viewBox[1], height);
49    box.fRight = SkScalarDiv(viewBox[2], width);
50    box.fBottom = SkScalarDiv(viewBox[3], height);
51    if (box.fLeft == 0 && box.fTop == 0 &&
52        box.fRight == SK_Scalar1 && box.fBottom == SK_Scalar1)
53            return;
54    parser._startElement("matrix");
55    if (box.fLeft != 0) {
56        SkString x;
57        x.appendScalar(box.fLeft);
58        parser._addAttributeLen("translateX", x.c_str(), x.size());
59    }
60    if (box.fTop != 0) {
61        SkString y;
62        y.appendScalar(box.fTop);
63        parser._addAttributeLen("translateY", y.c_str(), y.size());
64    }
65    if (box.fRight != SK_Scalar1) {
66        SkString x;
67        x.appendScalar(box.fRight);
68        parser._addAttributeLen("scaleX", x.c_str(), x.size());
69    }
70    if (box.fBottom != SK_Scalar1) {
71        SkString y;
72        y.appendScalar(box.fBottom);
73        parser._addAttributeLen("scaleY", y.c_str(), y.size());
74    }
75    parser._endElement();
76}
77